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www.aie deb.com f H lgna W 877-472-0711 - Billings, Mr B00-735-4489 - Casper, WY 888-235-0515 <br />Aeahtlaatl X= IM J'r <br />ea?1 B66Yi66-7175 *,Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 03/01 /11 <br />Project: Schwartz GW 01/27/1 0 S25575-S25576 Work Order: C11010885 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E300.0 Batch: R142493 <br />Sample ID: LCS 2 Laboratory Control Sample Run: IC2-C_110203A 02/03/11 13:51 <br />Chloride 9.79 mg/L 1.0 98 90 110 <br />Sulfate 39.6 mg/L 1.0 99 90 110 <br />Sample ID: MBLK 2 Method Blank Run: IC2-C_110203A 02/03/11 14:06 <br />Chloride ND mg/L 3.0 <br />Sulfate ND mg/L 5.0 <br />Sample ID: LFB 2 Laboratory Fortified Blank Run: IC2-C_110203A 02/03/11 14:37 <br />Chloride 12.0 mg/L 1.0 96 90 110 <br />Sulfate 48.8 mg/L 1.0 98 90 110 <br />Sample ID: C1 1010858-001 AMS 2 Sample Matrix Spike Run: IC2-C_110203A 02/03/11 19:21 <br />Chloride 75.0 mg/L 1.0 97 80 120 <br />Sulfate 593 mg/L 4.0 90 80 120 <br />Sample ID: C11010858-001AMSD 2 Sample Matrix Spike Duplicate Run: IC2-C_110203A 02/03/11 19:36 <br />Chloride 74.9 mg/L 1.0 97 80 120 0.2 10 <br />Sulfate 592 mg/L 4.0 89 80 120 0.2 10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 15 of 24 <br />